P2-052_Meibeck
In battery systems with high terminal voltages, many cells have to be connected in series. Since the weakest cell in this chain defines the overall performance of the complete string, the monitoring of the cell performance is vital to the system performance. Also, the imminent breakdown of one cell has to be detected early to […]
P3-051
In this work a new expansion measurement methodology for the detection of ageing mechanisms in lithium ion cells is described and evaluated. For this purpose, a polarization-optical homodyne Michelson interferometer with a resolution of approx. 10 nm was set up to allow measurements of different cell types, cell sizes, and cell chemistry within a Memmert […]
P5-078
The recycling of retired lithium-ion batteries (LIBs) is conventionally achieved through pyrometallurgical or hydrometallurgical approaches, which require substantial energetic and procedural efforts to achieving an effective separation of materials with a desired high degree of purity. An alternative approach is the direct recycling, which can be considered a distinct methodological shift. In contrast to other […]
P1-111
Bipolar plates (BPPs) are key components in vanadium redox flow batteries (VRFBs) as they contribute to a major part of cell stack costs. The main functions of a BPP are to prevent mixing between the electrolytes, conduct electrons, and provide mechanical support to the electrodes in a VRFB stack. Conductive carbon-polymer composites have been considered […]
P2-071
The electrode microstructure influences the cell performance and therefore the applications inwhich a cell can be used. Our theoretical model predicts a possible effect, where either the porosityor the thickness of curved electrode coatings (e.g. in cylindrical cells) differ, compared to uncurvedstate (e.g. in stacked pouch cells). According to our model, the porosity possibly deviates […]
P2-018_Abdellatif
Li-ion batteries (LIBs) offer diverse benefits for sustainable energy storage; they have a high storage capacity for their size, preserve good charge/discharge cycling stability over long periods, and have minimal charge loss during storage. However, like any energy storage technology, LIBs are not impeccable. Over time, battery deterioration can lead to safety and performance issues […]
P2-018_Abdellatif
Li-ion batteries (LIBs) offer diverse benefits for sustainable energy storage; they have a high storage capacity for their size, preserve good charge/discharge cycling stability over long periods, and have minimal charge loss during storage. However, like any energy storage technology, LIBs are not impeccable. Over time, battery deterioration can lead to safety and performance issues […]
P5-013
Understanding the aging behavior of Li-ion batteries is critical to improving their lifetime, performance, safety, and sustainability. Temperature, among other factors, is one of the most impacting factors on the cyclic aging behavior of Li-ion batteries [1–3]. However, a battery’s operating temperature, and therefore the dominant aging mechanism, typically changes during its lifetime, for example […]
P5-013
Understanding the aging behavior of Li-ion batteries is critical to improving their lifetime, performance, safety, and sustainability. Temperature, among other factors, is one of the most impacting factors on the cyclic aging behavior of Li-ion batteries [1–3]. However, a battery’s operating temperature, and therefore the dominant aging mechanism, typically changes during its lifetime, for example […]
P1-036
Long-range Battery Electric Vehicles (BEVs) and electric planes require the development of next-generation lithium-ion batteries (LIBs) with increased storage capacity. Silicon stands out as the most promising next candidate for the anode, primarily due to its remarkably high theoretical capacity. Furthermore, silicon is an abundant, cheap, and widely spread material. A major challenge for the […]